I am taking an N64 game from 1997 and bringing it to the Nintendo Wii. This game has a very large amount of VO. Unfortunatley, the only version of the VO that I have is the stuff that was severly downsampled to fit onto an N64 cart way back then. The original hi-rate audio files are not still available.
The files are 8820hz aifs. They are 32 bit, so at least I still have good bit resolution. Is there a plugin or program that anyone can suggest which will do a good job upsampling these to 22k or so? I understand that just upsampling in itself is not really going to help, but I suspect somewhere out there is some software that can analyze my waves and try and restore some high frequencies based on that analysis? Am I dreaming?
Any help would be greatly appreciated.